1 files changed, 3 insertions, 13 deletions
diff --git a/src/widgets/kernel/qwhatsthis.cpp b/src/widgets/kernel/qwhatsthis.cpp
index 9f8656b3fb..c80f37267f 100644
--- a/src/widgets/kernel/qwhatsthis.cpp
+++ b/src/widgets/kernel/qwhatsthis.cpp
@@ -97,8 +97,6 @@ QT_BEGIN_NAMESPACE
     \sa QToolTip
 */
 
-Q_CORE_EXPORT void qDeleteInEventHandler(QObject *o);
-
 class QWhatsThat : public QWidget
 {
     Q_OBJECT
@@ -110,7 +108,6 @@ public:
     static QWhatsThat *instance;
 
 protected:
-    void showEvent(QShowEvent *e) override;
     void mousePressEvent(QMouseEvent*) override;
     void mouseReleaseEvent(QMouseEvent*) override;
     void mouseMoveEvent(QMouseEvent*) override;
@@ -123,7 +120,6 @@ private:
     QString text;
     QTextDocument* doc;
     QString anchor;
-    QPixmap background;
 };
 
 QWhatsThat *QWhatsThat::instance = nullptr;
@@ -197,11 +193,6 @@ QWhatsThat::~QWhatsThat()
         delete doc;
 }
 
-void QWhatsThat::showEvent(QShowEvent *)
-{
-    background = QGuiApplication::primaryScreen()->grabWindow(0, x(), y(), width(), height());
-}
-
 void QWhatsThat::mousePressEvent(QMouseEvent* e)
 {
     pressed = true;
@@ -261,7 +252,6 @@ void QWhatsThat::paintEvent(QPaintEvent*)
     if (drawShadow)
         r.adjust(0, 0, -shadowWidth, -shadowWidth);
     QPainter p(this);
-    p.drawPixmap(0, 0, background);
     p.setPen(QPen(palette().toolTipText(), 0));
     p.setBrush(palette().toolTipBase());
     p.drawRect(r);
@@ -428,7 +418,7 @@ bool QWhatsThisPrivate::eventFilter(QObject *o, QEvent *e)
         break;
     case QEvent::KeyPress:
     {
-        QKeyEvent* kev = (QKeyEvent*)e;
+        QKeyEvent *kev = static_cast<QKeyEvent *>(e);
 #if QT_CONFIG(shortcut)
         if (kev->matches(QKeySequence::Cancel)) {
             QWhatsThis::leaveWhatsThisMode();
@@ -472,7 +462,7 @@ QWhatsThisAction::QWhatsThisAction(QObject *parent) : QAction(tr("What's This?")
     setIcon(p);
 #endif
     setCheckable(true);
-    connect(this, SIGNAL(triggered()), this, SLOT(actionTriggered()));
+    connect(this, &QWhatsThisAction::triggered, this, &QWhatsThisAction::actionTriggered);
 #ifndef QT_NO_SHORTCUT
     setShortcut(Qt::ShiftModifier | Qt::Key_F1);
 #endif
@@ -618,7 +608,7 @@ void QWhatsThis::showText(const QPoint &pos, const QString &text, QWidget *w)
 */
 void QWhatsThis::hideText()
 {
-    qDeleteInEventHandler(QWhatsThat::instance);
+    delete QWhatsThat::instance;
 }
 
 /*!